Return timestamp of the last recorded interval to the caller of HeapProfiler::GetHeapStats

include/v8-profiler.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_V8_PROFILER_H_
 #define V8_V8_PROFILER_H_
 
 #include "v8.h"
 
 /**
@@ skipping 453 matching lines @@
    */
   void StartTrackingHeapObjects(bool track_allocations = false);
 
   /**
    * Adds a new time interval entry to the aggregated statistics array. The
    * time interval entry contains information on the current heap objects
    * population size. The method also updates aggregated statistics and
    * reports updates for all previous time intervals via the OutputStream
    * object. Updates on each time interval are provided as a stream of the
    * HeapStatsUpdate structure instances.
-   * The return value of the function is the last seen heap object Id.
+   * If |timestamp_us| is supplied, timestamp of the new entry will be written
+   * into it. The return value of the function is the last seen heap object Id.
    *
    * StartTrackingHeapObjects must be called before the first call to this
    * method.
    */
-  SnapshotObjectId GetHeapStats(OutputStream* stream);
+  SnapshotObjectId GetHeapStats(OutputStream* stream,
+                                int64_t* timestamp_us = NULL);
 
   /**
    * Stops tracking of heap objects population statistics, cleans up all
    * collected data. StartHeapObjectsTracking must be called again prior to
-   * calling PushHeapObjectsStats next time.
+   * calling GetHeapStats next time.
    */
   void StopTrackingHeapObjects();
 
   /**
    * Deletes all snapshots taken. All previously returned pointers to
    * snapshots and their contents become invalid after this call.
    */
   void DeleteAllHeapSnapshots();
 
   /** Binds a callback to embedder's class ID. */
@@ skipping 108 matching lines @@
   uint32_t index;  // Index of the time interval that was changed.
   uint32_t count;  // New value of count field for the interval with this index.
   uint32_t size;  // New value of size field for the interval with this index.
 };
 
 
 }  // namespace v8
 
 
 #endif  // V8_V8_PROFILER_H_